William J. Chmura

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Southington, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Thread forming of sintered porous metal shapes
- Patent number 4,394,421
- Issue date Jul 19, 1983
- Textron Inc.
- William J. Chmura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Powder metallurgy production of spherical articles, such as bearing...
- Patent number 4,232,436
- Issue date Nov 11, 1980
- Textron Inc.
- William J. Chmura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Sintered ball valve
- Patent number 4,118,009
- Issue date Oct 3, 1978
- Textron Inc.
- William J. Chmura
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for the controlled mechanical working of sintered porous pow...
- Patent number 4,059,879
- Issue date Nov 29, 1977
- Textron Inc.
- William J. Chmura
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Sintered spherical articles
- Patent number 4,026,657
- Issue date May 31, 1977
- Textron, Inc.
- William J. Chmura
- B22 - CASTING POWDER METALLURGY